Big Boy, one of the largest and most powerful series of steam locomotives ever built. Produced from 1941 to 1944 by the American Locomotive Company of Schenectady, N.Y., exclusively for the Union Pacific Railroad, the Big Boy locomotives were designed pr
How did the invention of barbed wire revolutionize the cattle industry? How did railroads change ideas about travel? What effect did coal have on the Industrial Revolution? How did cows affect the Columbian Exchange? What role did the railroad play in westward expansion? How did Underground Railr...
Trains also raised the standard of living by cheaply transporting consumer goods and foodstuffs over long distances. Pennsylvania agriculture expanded as once-isolated regions populated by farmers now reached out via the rails to new markets. The invention of refrigerator cars brought Iowa beef, Califor...
The techniques of the present invention have been found to be applicable to many structural materials in their industrial field conditions. That is, although thin layers of dirt, oxides, grease, and other contaminants can slightly dampen the signal detected by the air-coupled transducer, they have...
In fact, international capitalism extended its physical productions well beyond the reach of the specific cognitive orders that accompanied their invention and exposed its machinery to the differing cognitive orders on which it intruded. At the same time, the local media carried the Cultural Critique ...